全直径油气储层岩心三维可视化信息采集方法及应用前景

发布时间：2018-06-12 14:54

本文选题：全直径岩心 + 三维　；参考：《石油实验地质》2017年05期

【摘要】：在微米X-CT基础上,通过对X射线强度的调整和扫描方式的更新,建立了Geoscan系列,并相应将样品室改装成了平放式加长扫描区,实现了对全直径岩心进行三维扫描成像。测试结果显示,以往难以描述的岩心断面构造、层理结构、非均态构型、孔—缝展布等全直径三维参数信息均能得到清晰的三维图像,有效拓宽了地学领域微观分析的视野。通过对石油钻井岩心全直径扫描,可以实现在一个较为宽泛的深度段内,观察分析不同矿物组分的含量变化、油气运移轨迹以及缝隙的延展性等重要参数信息,通过对储层物性参数数字化处理的图像可直接反映油气聚集的有效性及储集空间展布规律。这项技术将通过提供储集岩孔—渗架构三维可视化网格图和给予的储层品质定性结论来指导优化油区勘探部署。
[Abstract]:On the basis of micron X-CT, the Geoscan series is established by adjusting the X-ray intensity and updating the scanning mode, and the sample chamber is transformed into a horizontal extended scanning area, which realizes the 3D scanning imaging of the full-diameter core. The test results show that the 3D parameters such as core cross-section structure, bedding structure, heterogeneous configuration, pore-joint distribution and so on, which are difficult to describe in the past, can obtain clear 3D images, which effectively broaden the field of view of microanalysis in geoscience. By scanning the total diameter of the core of oil drilling, we can observe and analyze the important parameter information, such as the change of the content of different mineral components, the migration track of oil and gas, and the ductility of the crevice in a relatively wide range of depth. Through the digital processing of reservoir physical parameters, the validity of oil and gas accumulation and the distribution of reservoir space can be directly reflected. This technique will be used to guide the optimization of exploration and deployment in oil area by providing three-dimensional visualization grid map of reservoir pore and permeability structure and giving qualitative conclusion of reservoir quality.
【作者单位】：中国石化胜利油田分公司勘探开发研究院;东营三英精密仪器研发中心;中国海洋石油能源发展股份有限公司工程技术分公司;
【基金】：国家重大专项(2017ZX05049004) 中国石化股份有限公司科研计划项目(P15081) 国家能源页岩油研发中心、页岩油气富集机理与有效开发国家重点实验室联合资助
【分类号】：TE142

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